Revert of SkFontData to use smart pointers.

tools/lua/lua_pictures.cpp

Index: tools/lua/lua_pictures.cpp
diff --git a/tools/lua/lua_pictures.cpp b/tools/lua/lua_pictures.cpp
index 58983f4d58f56d9f7f2d6f861bc21918c10d1095..eee7088f0d14dc97b012cf0b736e1a37483ab775 100644
--- a/tools/lua/lua_pictures.cpp
+++ b/tools/lua/lua_pictures.cpp
@@ -39,8 +39,8 @@
 DEFINE_bool2(quiet, q, false, "Silence all non-error related output");
 
 static sk_sp<SkPicture> load_picture(const char path[]) {
-    std::unique_ptr<SkStream> stream = SkStream::MakeFromFile(path);
-    if (stream) {
+    SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(path));
+    if (stream.get()) {
         return SkPicture::MakeFromStream(stream.get());
     }
     return nullptr;